Lubricating apparatus.



No. '664,l8 0. Patented Dec. I8, 1900.

L. SERPOLLET.

LUBRICATING APPARATUS.

(Application filed Sept. 7, 1899.)

(No Ila d al.) 4 Sheets-Sheet 'Fzy/ fl Y :::J

I MIA 56w;

Tu: NORRIS Prrzns co. woraumu, wxsnmu'ram n c.

no. 664,I80. Patented mandala, I900.

L. SERPULLET. A

LUBRICATING APPARATUS.

(Application filed Sept. '1. 1899.) (No Model.) 1 4. Shasta-Sheet 2.

Aim/swim i Patented Dem-I8, I900. L. SERPOLLET. LUBRIGATING APPARATUS.

(Application md Sept. 7, 1399. (No Model.)

w/mms'ks; v

N0. 664,!80. I Patented Dec. l8, I900} L, S'ERPDLLET;

I LUBRIGATING APPARATUS.

A umionmea Sept. 7, 1899A (No Model.) 4 Sheets-Sheet '4.

UNITED STATES LEON SERPOLLET, OF PARIS, FRANCE, ASSIGNOR TO SOI-IAFFER & BUDEN- BERG, OF MAGDEBURG-BUOKAU, GERMANY.

LUBRICATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 664,180, dated December 18, 1900.

Application filed September 7, 1899- Serial No. 729,707. No model.)

To all whom it may concern; angles to the axis of the cylinder E and the Beit known that I, LEON SERPOLLET, a citipiston C being shown in difierent positions zen of the Republic of France, residing at in the respective figures; and Figs. 9, 10, and Paris, France, haveinventedanewand useful 11 are vertical cross-sections, on an enlarged 5 LubricatingApparatus, (for which I made apscale, on the line 3 3 in Fig.1, the piston G plication for Letters Patent in France on the being shown in different positions in the re- 30th day of March, 1899, and in Germany on spective figures. the 31st day of May, 1899,) of which the fol- Similar letters refer to similar parts throughlowing is a specification. out the several views. i0 Myinvention relates to a mechanically-op- In Fig. 1, A is the oil-reservoir, and E the erated lubricating apparatus of the kind in cylinder attached thereto and communicatwhich the oil is drawn from a reservoir by ing therewith through the suction-channel M. means of a piston or plunger and then deliv- The cylinder E is provided with a number of ered to the parts to be lubricated through one channels J J for conducting the oil to the dis- 15 or more distributing-pipes, either under prestribution-pipes J J. In the cylinder E the sure or not, as may be desired; and the ob- 'hollow piston O is fitted to rotate and to rejects of my invention are, first, to provide a ciprocate simultaneously. It has a partitionpiston adapted to be simultaneously rotated wall 0, and on the one side of this a slanting and reciprocated in a cylinder attached to the suction-port H and a discharge-port K in the 2o reservoir, so as to effect the lubrication in an direction of the axis. On the other side of the absolutely effective manner and without the partition-wall O the piston C is provided intervention of suction or pressure valves, with a cam-drum L-z'. e, acylinder having a which never operate satisfactorily with thick groove L of the shape shown in Fig. 1. In and viscid lubricating materialssuch, for the stuffing-box F, attached to the oil-reser- 25 example, as volvoline-oil and often give voir A,t he shaft B is journaled and prevented rise to the defect of steam entering the oilfrom shifting endwise. Itcarries the ratchetreservoir and to other disturbances; second, wheel S and is thereby revolved intermitto provide means for reciprocating the said tently when the lever U, mounted loosely on piston while it is being revolved, and, third, the shaftB and connected with some suitable 8o 0 to provide a device whereby overpressure is part of the engine or other moving part, is avoided if the apparatus is used for lubricatreciprocated and the pawl T engages the ing surfaces under pressure. I attain these ratchet-wheel S. Inside the oil-reservoir A objects by the apparatus illustrated in the acthe shaft B reaches into the cavity of the piscompanying drawings, in whichton O to some distance from the partition- 3 5 Figure 1 is a vertical longitudinal section wall 0'. This part of the shaft is made holof an apparatus serving for lubricating surlow and provided with several holes B B to faces under no pressure. Fig. 2 is a horizontal allow of the oil circulating freely. The shaft section of the same on the line 2 2 in Fig. 1. B is provided with a cross-pieceO, which is Fig. 3 is a cross-section of the same on the secured by a pin V or otherwise and engages o 40 line 3 3 in Fig. 1. Fig. 4 is a vertical longiin the slots L 'L provided in the annular protudinal section, on an enlarged scale, of a dejection L of the cam-drum L. The piston C vice for avoiding overpressure, which device is thus coupled with the shaft B, while retainis attached to the lubricating apparatus if the ing its liberty to reciprocate. On the bolt D latter is used for lubricating surfaces under in the nut G a stationary guide-roller D is 5 pressure. Fig. 5 is a longitudinal sectional mounted, which engages with the groove L elevation of a modified form of the improveof thecam-druin L in such a manner that the ment, and Fig. 6 isa sectional plan view of piston C during its revolution is caused to rethe same on the line 6 6 in Fig. 5. Figs. 7 ciprocate in the cylinder E. and 8 are vertical cross-sections, on an en- The operation of the apparatus is as fol 50 larged scale, on the line 7 7 in Fig. 1, the suclows: The reservoir A is filled with oil and tion-port H being represented as set at right the ratchet-wheel S is revolved intermittently by means of the lever U in the manner described above, thereby revolving the operating-shaft B, which communicates a rotary motion to the cam-disk L and piston C. During the suction period at the first half-revolutionthat is to say, during the time the piston 0 moves in the direction from the cylinder E into the reservoir Athe suctionport H opens into' the inlet'channel M and then establishes communication between the oil-reservoir A and the cylinder E, allowing a certain quantity of oil to enter. This is illustrated by Figs. 7 and 8, the piston C being assumed to revolve in the direction of the arrow and the suction-port II being for the sake of clearness assumed to be at right angles to the axis of the cylinder E. In Fig. 7 the suction-port II commences to open into the inlet-channel M, while in Fig. 8 it closes the channel M. During the period of discharge or while the second half of the revo' lution of the piston C is taking place this latter reenters the cylinder E. At the same time the discharge-port K opens into the several channels J J in succession and enables the oil to pass thereinto and through the distribution-pipes J J to the parts to be lubricated.

In the arrangement described so far the oil in the lubricated surfaces is not under pres sure, and for this reason the cylindrical portion situated between two discharge-openings J J (see Fig. 3) is smaller than the width of the discharge-port K, thus enabling any two such discharge-openings to be brought into intercommunication and simultaneously receive lubricating material. In this manner no compression of the oil takes place, which, however, would occur by the sudden closing of the oil-discharge.

For lubricating surfaces under pressure, either all under a uniform pressure or under differentpressures, the apparatus requires to be provided with an additional device, as follows: The cylinder E is furnished with a tightly-fitting piston I, (see Fig. 4,) adapted to be acted upon by means of a spring N, the tension of which may be adjusted from the outside by means of a screw W, passing through a suitable stuffing-box X. The-discharge-port K is made narrower than the distance between two successive discharge-openingsJJ in the cylinder. (See Fig. 11.) Therefore communication between two distribution-pipes J J cannot take place, because the closing of any one of the discharge-openings J J is completed before another is opened. As the cylinder thus closes for a short period the spring-controlled piston I is forced slightly outward against the pressure of the spring N, and compression of the oil is thus avoided.

- Upon the piston 0 now uncovering the next the oil should find its way around the springcontrolled piston I in case of it becoming somewhat leaky, the oil will return through a'passage Q into the oil-reservoir A. During the suction period the passage Q is in communication with the hollow piston 0 through the suction-port H, but not so during the discharge period.

Fig. 9 shows the piston C to be in the same position as in Fig. 8, so that it is about to uncover the first discharge-opening J. In Fig. 10 the communication between the piston C and this discharge-opening is established by the discharge port K. In Fig. 11 this communication is broken, so that the spring-controlled piston I (shown in Fig. 4) will be forced slightly outward.

The parts of the apparatus described above may be modified slightly without deviating essentially from the invention. For example, the cam-drum L may have a single camface L, as shown in Figs. 5 and (5, which, with the aid of the stud or roller D, effects the forward movement of the piston C, while a spring R is employed to effect the return movement of the piston C.

Having described my invention, I declare that what I claim, and desire to secure by Letters Patent, is-

1. The combination with an oil-reservoir, of a cylinder attached thereto and provided with a discharge-opening leading into a distribution-pipe, a piston adapted to revolve and reciprocate simultaneously in said cylinder and provided with a suction-port adapted to communicate with an inlet-channel leading from the reservoir, during the suction period, and a discharge-port, adapted to communicate with the discharge-opening of the cylinder during the discharge period, and means for revolving and reciprocating said piston, substantially as set forth.

2. The combination with an oil-reservoir, of a cylinder attached thereto and provided with a discharge-opening leading into a distributing-pipe, a hollow piston adapted to revolve and to reciprocate simultaneously in said cylinder, and provided with a transverse partition-wall, the piston having a slanting suction-port and a longitudinal dischargeport on one side of the partition, and means for revolving and reciprocating said piston, as set forth.

3. The combination with an oil-reservoir, of a cylinder attached thereto at one side thereof, and provided with a plurality of discharge-openings leading into distributingpipes, a piston adapted to revolve and reciprocate simultaneously in said cylinder, and provided with a suction-port for drawing in oil from said reservoir during the first halfrevolution, when the piston moves into the reservoir and with a discharge-port for discharging the oil during the second half-revolution when the piston moves into the cylinder, the turning of the said piston as it moves into the cylinder causing the oil to be discharged successively into said discharge-openings and the distributing-pipes, and means for revolving and reciprocating said piston, as set forth.

4. The combination with an oil-reservoir, of a cylinder attached thereto and provided with a plurality of discharge-openings leading into distributing-pipes, a hollow piston adapted to revolve and reciprocate simultaneously in said cylinder and having a transverse partition, the said piston being provided at one side of the partition with a slanting suction-port for drawing in oil from said reservoir during the first half-revolution and with a discharge-port for discharging the oil during the second half-revolution successively into said discharge-openings and distributing-pipes, means for revolving and reciprocating said piston, and means for preventing overpressure, substantially as set forth.

5. The combination with an oil-reservoir, of a cylinder attached thereto and communicating therewith by means of an inlet-channel and with a distributing-pipe by means of a discharge-opening, a hollow piston revolving and reciprocating in said cylinder and having a partition-Wall and provided with a slanting suction-port opening into said inletchannel during the first half-revolution for drawing in oil and with a discharge-port opening into said discharge-opening during the second half-revolution for discharging the oil, means for revolving and. reciprocating said piston, and means for preventing overpressure, substantially as set forth.

6. In a lubricating apparatus, the combination with a reservoir, of a cylinder comm nnicating therewith, a plurality of distributing-pipes communicating with said cylinder, a hollow piston revolving and reciprocatingin said cylinderand provided with a suction-port and a discharge-port for drawing in oil from the reservoir du ringthe first half-revolution and for discharging it into said distributingpipes in succession during the second halfrevolution, a cam-drum attached to said piston, a stationary guide-roller engaging therewith for reciprocating said piston during each revolution, a revolving shaft mounted in the wall of said reservoir and held from endwise movement and extending into said cam-dru m, a cross-piece attached to said shaft and engaging slots in said cam-drum, and means for revolving said shaft, substantially as set forth.

7. In a lubricating apparatus, the combi-' nation with a reservoir, of a cylinder communicating therewith by an inlet-channel, a plurality of distributing-pipes communicating with said cylinder through discharge-openings arranged on half the periphery, a hollow piston revolving and reciprocating in said cylinder and having a partition-wall, the said piston being provided on one side of the partition-wall with a slanting suction-port opening into said inlet channel during the first half-revolution and wit-h a discharge-port opening successively into said dischargeopenings during the second half-revolution,

a cam-drum attached to said piston on the other side of the partition, a stationary guide engaging with said cam-drum for reciprocating the piston during each revolution, a revolving shaft engaging with said piston to revolve same, while leaving it full liberty to reciprocate, means for preventing overpressure, substantially as set forth.

, 8. In a lubricating apparatus, the combination with a reservoir, of a cylinder communicating therewith, a plurality of distibutingpipes communicating with said cylinder, a hollow piston revolving and reciprocating in said cylinder and provided with a suctionport and a discharge-port for drawing in oil from the reservoir during the first half-revolution and for discharging it into said distributing-pipes in succession during the second half-revolution, means for preventing overpressure, a cam-drum attached to said piston, a stationary guide-roller engaging therewith for reciprocating said piston during each revolution, a revolving shaft journaled in the wall of said reservoir and prevented from shifting endwise and reaching into said cam-drum, a cross-piece attached to said shaft and engaging in slots provided in said cam drum, and means for revolving said shaft, substantially as set forth.

9. In a lubricating apparatus, the combination with a reservoir, of a cylinder communicating therewith, a plurality of distributing-pipes communicating with said cylinder, ahollow piston revolving and reciprocating therein and provided with a suction-port and a discharge-port for drawing in oil from the reservoir during the first half-revolution and for discharging it into said distributing-pipes in succession during the second half-revolution, means for preventing overpressure, a cam-drun1 attached to said piston, a stationary guide-roller engaging therewith for reciprocating said piston during each revolution, a revolving shaft engaging with said piston to revolve same while leaving it full liberty to reciprocate, a ratchet-wheel arranged on said shaft, and a lever mounted loosely on the shaft and carrying a pawl for engaging said ratchet-wheel, the said lever being connected with some moving part to be thereby reciprocated, substantially as set forth.

10. In a lubricating apparatus, the combination with a reservoir, of a cylinder communicating therewith and provided with a pinrality of discharge-openings on half the periphery leading into distributing-pipes, a hollow piston revolving and reciprocating in said cylinder and provided with a suctionport opening into said reservoir during the first half-revolution and with a dischargeport openingin succession into said dischargeopenings during the second half-revolution, the width of said discharge-port being smaller than the distance between successive discharge-openings to prevent inter-communication, means for revolving and reciprocating said piston, a spring-controlled piston fitted in said cylinder in opposition to said revolving and reciprocating piston to prevent overpressure, substantially as set forth.

11. In a lubricating apparatus, the combination with a reservoir, of a cylinder communicating, therewith and provided with a plurality of discharge openings on half the periphery leading into distributing-pipes, a hollow piston adapted to revolve and reciprocate in said cylinder and provided with a suctionport opening into said reservoir during the first half-revolution and with a dischargeport opening in succession into said discharge-openings during the second half-revolution, means for revolving and reciprocaling said piston, a relief-piston fitted in said cylinder in opposition to said revolving and reciprocating piston, a spring bearing against said relief-piston and being adjustable from the outside by means of a screw, the reliefpiston serving for preventing overpressure by receding during the interruption of the communication between said cylinder and one of said distributing-pipes, and a channel for returning the oil finding its way around said relief-piston to said reservoir, substantially as set forth.

12. In a lubricating apparatus, the combination with a reservoir, of a cylinder communicating therewith and provided with a discharge-opening leading into a distributionpipe, a hollow piston revolving and reciproeating in said cylinder and provided with a suction-port and a discharge-port, a cam drum attached to said piston, a stationary guide-roller engaging therewith for reciprocating said piston during each revolution, a revolving shaft engaging with said piston to revolve the same, while the said piston is free to reciprocate, a ratchet-wheel arranged on said shaft and a lever mounted loosely on the shaft and carrying a pawl for engaging said ratchet-wheel.

13. The combination with an oil-reservoir, of a cylinder attached thereto and provided with discharge-openings leading into distributing-pipes, a hollow piston adapted to revolve intermittently in one direction, and to reciprocate during its revolution, the said piston being provided with a suction-port adapted during the first half-revolution of the piston to draw in oil from the reservoir and with a discharge-port through which the oil is discharged successivelyinto the discharge-openings of the cylinder, during the second halfrevolution of the piston, means for revolving said piston intermittently, means for reciprocating said piston during its revolution, and a spring-pressed piston fitting in the outer part of said cylinder and adapted to yield to prevent overpressure, as set forth.

LEON SERPOLLET.

\Vitnesses:

OTTO SPUKE, EDWARD P. MACLEAN. 

